Pasteurizer.



-' L; S. PFOUTS.

PASTEUMZBR. APPLICATION FILED APB. 7'. 1909.

Panama out. 19,1909.

. 0 www@ me* .mv Q. AQ@ T L. s. PPO-1511s.- PASTBUR1ZER. APPLIqATIoN FILED Amm- 1909: ggggg?, lamented ont. 1.9, 1909.

3 SHEETS-SHEET 3 avvento I attain,

UNiTED sTiiTEsgraTENfr OFFICE.

lLEROY s. PFoU'rs, OE oi'iN'rON, omo, assisNo To 'rn-E MILLEEPASTEURIZING MACHINE COMPANY, `-OF CANTON, omo, A oORPoRaTioN OE NEW JERSEY.

PASTEURIZER.

To all who-m it may concer/n.:

Be it known that I, LEROY S. PFoUTs, a citizen of the United States, residing at Canton, in the county of Stark `and State of Ohio, have invented certain new ,and use ful Improvements in Pasteurizers, of which the following is a specification, reference being had therein to 'the accompanying drawmo's.

rrlhis invention relates to pasteurizing apparatus, and particularly to lapparatus adapted totreat liquid,l such as m1lk,l1n a continuous manner.

One Object of the invention is to produce a pasteurizing apparatus or liquid distributing and holding system having a continuous flow of the liquid tO and from the apparatus,

adapted to thoroughly and-uniform y treat each and every particle of the liquid.

Another object of the invention is to pro- 'vide improved means for positively controlling the low of. the liquidt-hrough the pasteurizer, whereby each and every particle of the liquid is thoroughly treated.

Another object of the invention is to comf bine with a liquid treating a.ppara tus, com

. prising a heater and a cooler, an improved holding mechanism for thoroughly treating the liquid and means for controlling the continuous How of the liquid to and discharge from the said holding mechanism.

. l havn` iillustrated n'iyinventionin 'oon-` net-tion with a liquid treating apparatus sut-h as shown and described in myA ap lieation filed January 25th, 1909, Seria No.

74,128..` lt will be understood, however,

that ,my ii'nprovcments in liquid distributing mechanism for p asteui'izing apparatus may bo, used in connection with a liquid Atreating apparatus of any suitable or preferred construction, and while theTembodime'nt'ofv the invention illustrated herein has been confori'ned to the general construction of apparatus shown in my said application, it mayv b c adapted to s uit aay'particnlar construction oit apparatus 1s connection with which it is to be used.

Referring to the drawings: Figure l is a side elevation oi' an ,apparatus embodying myjinvention, parts being broken away to facilitate the description and illustration of the invention. Fig. 2 is a top plan view. Figs. 3, 4t and 5 are detail views.

in the drawings, A indicates a heater-,B

a preliminary cooler, and Qa final cooler.

Specification of Letters Patent.

Patented oct. 19, 1909.

Application filed. April 7, 1909. Serial N0.48,521.

D indicates a power mechanism comprising a main driving shatd. l i

The heater A and coolers B and C ar each provided with a shaft a, b, c, respectively, driven by gears or Worms d', d2 con- .nected respectively to the said shafts and the main sha-ftd of the mechanism D. p

The heater A Acomprises an inner rotary vessel as, connected with the driven shaft a and adapted to hold a heating medium; an intermediate vessel a* surrounding the vessel aa and forming therewith a liquid iilm s ace a5; and an outer vessel' a, surrounding tiie inner and intermediate vessels a3, a4 and adapted to form with the outer walls of the latter vessel a .chamber to receive a suitable heating' medium. i Each of the coolers B and C comprise an inner rotary vessel b2, connected with the driven shafts' Z), c, respectively; an intermediate vessel b3., and an outer vessel g b4. These vessels are constructed and arrangedA relatively to each other to form a liquid lm space, and a space or ,chamber 'on opposite sides of the film space for a -suitable cooling medium. These parts, to wit, the heater A, and coolers`B andG'and those features of const-ruction cooperating therewith, are. constructed,

generally, and operate similarly :to corre# sponding parts shownanddescribed in the patent .issued to John C. Miller on .the 4th day fof l`eloruary1908,'A and numbered 878,225; 'and as the particular construction thereof forms. no part. of 4the, present Ainvention, further descriptionof these parts will be omitted, as .they are 'fully shown and described in the aforesaid patent', to which reference may be made.4V

2 indicates as a whole a' liquid distributing and holding. apparatus, preferably intersuitable height, The -casing 3 may be provided with doors 3,"to permit access to vari ons parts of the'a-ppatratus.

The liquid distributing and holding appa.-` llti I pedestal or casing 3 at 'av r TND ratus 2 preferablyI comprises t lll a series of in dependent. or separated rc. el, cach coin prising` an inner receptacle el and an outer receptacle 4b, and haring any ii'isnlating jacket 4l. This jacket is shown to bc lillcd with cork: Each of said ves-sels l is prctcn tothe vessels. One example of a Suitable Support. for the holding' vessels couiprises an annular tubular base 5, e tending around 'thel'ieaterA` and a series ofinclined arms or brackets 5 carrying the base 5 at their outer ends land secured to the casing B at their iiincr ends by bolts 5a. The saidinner ends ot the arms 5 are preferably g adj ustabiy secured tothe saidcasiug, while'the base 1s f detachably secured to the bracketS S0 Chili; the

distributing and holding' apparatus may be removed entirely from the heater for Various purposes. The annular tubular base 5 may as hereinafter described, 'be used as a discharge conduit for liquid fronithe vesselsfl.

6 indicates a circular liquid receivingl trough, corninon to all .the'holding and diey tributing receptacles Ll, and adapted to receive the liquid flowingfrom the upper end` of the heater A through a discharge pipe a.

Preftxabluin there are a Series of vdischargre pipes c arranged cqui-distantly around the heater A -in order to facilitate the flow of the l liquid.

7 indicates delivery pipes, one. for each ot trough (l, atwor near its bottom, and its oppositel end leads into the adjacent vessel et. lrcgt'erably, the pipe '7 extends'tl'nough the side VYa-lls of the vesseh near its upper end, so that nothing will interfere with the tight closing' ot the .'essely by the 'cover 491.

7 indicates a Valve interposed in each ot thel delivery pipes 7' for separately controlling' the .flow ofthe 'liquid/toits ri'ispectire vessel fl. 1 'i i l8 indicates valve 'operating mechanisms. one for eachoi" the valves v7. `Each of the valve operating mechanisms` @preferably comprises an oscillatalilc arrn H connected rigidly with the ralicw. a link d pirotalli7` connected at om!l id tothe arm d, and :it the opposite cial..l tally, eom'iected tio a lever SC. The ler( is .tulcrumcd at 8 to soii'ievsnitabic Statioi'iary part ot kthe apparatas, such as the casini;` orv liedestal 5h The casi nu' 3 is prcteralily Alormcd with a slotjorh .opei'nnu' through,which thc lever extends.v

The 't'rce c nd of thel lever-El is iireterahlylA ".'t'eiphtmh as Shown .a 'S2 in order that the valve mai,v be n,ornially held in one. prefer*l ably its closed ijiosition. Aln the. torni ot the invention illustrated, the Atree ends t5 ot' cach 'i o'll the lei'ers S", extend within the casinar and are arranged concentric ilr around thc d rircn shat't o ot' the leuter.

Si indicates a cam adapted to rcrolrc :ihont thc .sliat't if `and circ-"arc 'with cach ot the lcrcrs w successively. 'lhc cam fl carried by an arm il which is tixed to and opcratcd h i' :i train ot `gears l() adapted to hc driven from thc .sha'lt fr. Such ucar mechanism i." preti-r` ahlj)v of the intermittent rotary type and all the 2gears ot' the train are constructed and arranged relativelyy to cach other whereby the Speed ot the shaft u communicated through he said gear train to the reiolvingarm il is greatly reduced so that thc 'am t) operates through the mechanism each ot the dclircrii valves T successively at predctermincrl inter'vals, for instance once in tivcntiiy to thirtiN minutes.

The reducing gear mechanism l() coinprises a pinion l0", secured to the ahatft if. and meshing with a gear 10i'.` 'This lutter is' fixed to a countersha'ft, 10': which is mounted in Snitableliearings in a plate ltll or other .suitable support Sicured' to the interior side 'alls ot' the casing f lOc indicates ajpinion carried by thc shat'ty l0" and meshing with a Icc'ar lOf tixed to a sleeve 10e which loosely inount'cd on the shaft rl`hcI arm Qa'ifs pi'eflierahl'x,y txcd to the sleeve 10g.

ll indicates discharge pipes .preferablyY leadingr from the bottom oli' ach ol thc vessels Al, :.deach pipe Il is connected to the annular conduit or base 5. This conduit 5 conveys the. liquid to the preliminariY cooler B. i

13 indicates valves. oml located in cachot thc pipes ll and operating' to control thc discharge oi the liquid 'from the. adjacent vessel l. p

lindicatcs valveoperating nicchaniu'n one for ach'ol the. discharge ralrcs lit. liaclrof the valve operating inet'thanisnisy l l preferably comprises an arm l-l rigidly .sccured to the adjacent valve lil. a linlc ll" pirotally connected' at one cnd to the :n ni lll-,'ziiirl a lcrcr ll" to which thc oppo-itc ciid oii the. link ll" is pirotall'v connected. The havent-t" Vis vlinlcruincd at l l pifclcrahliv to the interior ot thc casing. 'the outer or 'l'rce cudM of the lever 14" is prclcrahli' weighted so that the rali'c ifl held nornudlr in one, pret'crahl)Y `its closed. position. rlhe, i\'ciglitcd ends oll thc. levers tl" are arranged coi-wcntrically about' thc` sl t iii l and in `thc path oi' a rcvoluhlc cam la' which operates each lcrcr .separatelyY and' Fuccessively. i

l'lie mechanism lor revolving the cani li vcomprises an intermittent; rotar)7 rear train lo. and an arnr llifarhich carries the cani l5. rThe `rear train lfi prcltc'rahl)Y comprises a hinion lo tixcd to the. countcrshaftj l0" and a ucar lt" with `aihich the pinion lt meshes.

lo indicate@v a slecre Atio which thc gear .ltio

llt)

llftl -definite'length of time in order to destroy or render innoci'iousany geri'ns or bacteria contained in the liquid, and nally to cool the liquid to a normal temperature; and that it. is also desirable that these steps shall be carried out substantially continuously, that is, that there shall be a substantially continuous flow ot the liquid to and through the apparatus, and a substantially continuous discharge therefrom. geous results are |all accomplished Ain the apparatus herein described and illustrated,

as will be more fully understood from the following,described operation: The liquid is delivered'to areceivingtank having a discharge. pipe A, which operates as a supply means and from which it flows b v gravity to the heater A. In passing through the yheater the liquid is suddenly' and uniformly raised to the desired temperature and is delivered to the trough fr. From the trough a. the liquid is discharged by means of the outlets c into the common receiving trough 'As the cain?) for the vdelivery or feed valve operating mechanism revolves about the shaft a, it. `engages with and raises and lowers each ot' the levers 8W' successively. This operation ol. each lever opens and closes the' valve 7 connected therewith for a period of time necessary to allow liquid to flow4 by Vgravity linto and to4 lill the 'adjacent eoiiununimiting vessel 4. As the cam. 9 inlerinittei'itly moves around the sliaftval it will be readily miderstoodthat during one complete revolution oi said cam each ofthe valves 7 in a given succession is opened and closed and the adjacent communicating vessel filled. The discharge valve operating cani 15 controls the discharge of the liquid from the' vessels 4, by opening and closing the discharge valves'13, similarly to the cam l), and its operating ineel'ianisms 8, for opening and .closing the inlet valves. The cani 15 isrevolved at the same rate ol. speed the cain 9 and is set or stepped ali-cad of the cani 9 iii order that cach of the -vessels 4 may be emptied successively-and in advance of the operation ot' the valves 7 for the refilling thereof;

From the above description and operationit will be seen that the vessels l are filled successively' and emptied successively, and

These advantathat each vessel remains filled with the liquid for a predetermined length of time. dependent upon'tlie speed ot' rotation of the cams 9 and lf and the angular'distance' between tlicin. 'llie speed ot the cains may be regulated in various ways, as by substituting gears ot' dillereut relative sizes, or by adjusting the position ot' either one ofthe cams on the eii'cunil'ei'ence of the circle it describes so that the discl'iarge valves will oper:` te sooner or later a't'ter the operation of the delivery or inlet valves, respectively.

As shown in the drawings, each of the delivery pipes 7 is forined'otl two parts 7, 7b and joined together by a coupling 7c; like- Wise the outlet pipes 'l1 each comprise two pipes 1l, 11b connected by ay coupling 11. By this construction each of the vessels 4 and all of the. piping may be quickly and readily disconnected for cleaning.

From each of the vessels Ll the treated liquidliows by gravity into the angular tubular base 5 and thence flows by gravity into the receiving hopper 1t) of the preliminary cooler B. lit is conveyed through this cooler 1n the `\vell known manner and delivered trom it into the receiving hopper c into the final cooler C.

I am aware of the' fact that 1t has been hertolore proposedto provide apparatus for treating or pasteiirizing milk, cream or other liquids in which the milk was heated to a pasteurizing temperature while flowing continuously, 'as then maintained at the pasteui'izing temperature for a sutlicient period ot time to destroyor render innocuous the bacteria without cooking the albuinen in the milk, and without the discontinuing ot' the tlow ,oit the milk while being heated, and then cooling the milk, as for example is disclosed in Letters latentvof the United States No.'A 684,319 to Frederick G. Shortt, and I do not lay any claim broadly to a process of treating milk or other liquids and to apparatus such as set forth. and disclosed in. the said Shorttpatent. (n the contrary, I have sought'toprovido improved apparatus for thev treating ot' milk or other liquids b y first heating it to a pasteuriziiig ltem-perature, then holding it at that temperature for a predetermined time, and then cooling it.

To those skilled in the art of making apparatus of the class described, many alterations in construction and widely differing embodiments and applications ol my invention will suggest. themselves, without departing from the spirit and scope thereof; vMy disclosuresand the description therein are purely illustrative and ai'e not intended to.

' vessels successively, and means for controlnation ot a series of liquid holding vessels, a delivery pipe for each ot the vessels, mechanisni `for controlling the tion ot' a liquid .deliverypipe tor cach et the vessels, iiieen- .anisni for Controlling the tlow ot' a liquid and holding` vessels, means including valves 'for controlling` the t'ioi'v of the liquid from the trough, tothe receivingand holding means, and means toucontrolling the discharge ot the liquid from the said receiving and holding means. l

2. ln a pastcurizing apparatus, the coml'iination of a series ot vessels, a liquid receiving trough common to the said vessels, delivery pipes, one for each vessel, leading from said trough. means. for controlling the tioiv oi thel liquidthiougli the pipes to the ge from the said vessels sucling the discliar cessively.

, 3. In a pasteuiiziiig apparatus, the coinhination oit a series of liquid holding vessels, a delivery pipe for each of the vessels, a trough commoi'i to all the pipes, a mechanism for controlling the tion' of tlieliquid through. each pipe, means for automatically operaten ing each ot' the said mechanisms successively, and means for discharging the liquid from the vessels.

4l. ln a pasteurizing apparatus, the combination of a seriesof liquid holdingf vessels, a delivery pipe for each of the Vessels, ai trough eon'inion to all `the pipes, 'a mechanism for controlling the flow' of the liquid through each pipe, revoluble means for automatically operating each of the said mechanisms successively, and means for discharging the liquid from the Vessels.

5. In a pasteurizing apparatus, the coinhif nation of a series of liquid holdingr vessels, a delivery pipe for each of the vessels,'a trough common to all the pipes, a mechanism 'for controlling the How of the liquid through each pipe, a -eam for automatically operab ing each of the said mechanisms'successively, and means for discharging the liquid from the Vessels. f

through each ot' said pipes, ii'icluding a le y"er, a 'movable Vmeans `tor operating each ot' the said levers successively, and means controlline` the discharge ot each of the said vests \ls '7. ,lira pasteurizing apparatus, the eeinliination of a series ofelieiiid holding'vessels, a delivery pipe tor eadli .itvtlie vessels, meehanism lior controlling)..he flow of a liquid through lcachl of said pipes. including,i :ileveiu all of the said levers heine arranged in a circular Series, and revolving leans ter engagingwith and oiieratiiigx cach of the levers successively, and means l'or controlling; the discharge of the liquid. from each ot he said Vessels.

8. lln a pasteurizing apparatus, the comhination of a series o'l liquid holding;- vessels, a

vessels.

successively, and means for controlling the.

discharge ot! the liquid from each of the said 9. n a, pasteuiizing ainiiaratus, the combination of a liquid supply means, a heating apparatus, a lioldiiuar apparatus conqiirising` .a-"zplurality of ressels arranged in series around said heating apparat-us, and a cooling' apparatus, the said heating, holding and cooling' apparatus being arranged in stepped relation to each other, respectively, whereby the liquid tioivs from one to tlieotlicr by gravity. A

y it). In a pasteurizing apparatus, the coin hination of a heater having a rotating' ineinber, a driven shaft therefor, a liquid holding` apparatus comprising a series of vessels, means for automati ally controlling' the flow `of a, liquid to each of the said vessels, separate means for dischargingr tlie'liquid trein each ot said vessels, and reducing gear mechanism interposed between the driven shaft. and the said liquid control means and the liquid discharge means.

ll. ln a pasteurizing apparatus, -tlie coin-- hination ot'a heater, a series of liquid holding vessels arranged concentrically ahout th heater, a delivery pipe leading to each of the said vessels, a driven shaft and means operated hy the driven shaft Ylor controlling the tion' of a liquid through each of said pipes, and inealis for dischargine` the liquid from each of the vessels.

l2. ln .a pasteurix/.ing apparatus, the coni-` hination of a heater, a series et liquid hold ingv vesselsy arranged coneentri cally about the heater. a liquid receiving,r trough surroundinpj the heater, a delivery pipe leadina from the trough toeach otz the said vessels, automatically operationy means 'For p controlling the tloiv ot' the liquid through each of the said delivery pipes successively. and means t'or coi'itrolling the automatic discharge of each ot said vessels.

lil. in a pasteurizing apparatus. tue conihination of a heater, a` series ot liquid hold-- ing; vessels arranged eoncentricall.7 about the heater. a liquid receiving troulu'li surround ing the heater. a delivery pipe leading trout the trough to each et the said vesfels, a

4valve located in each of said pipes, means hination ot a heater. a Series ol3 liquid hold-V ing vesselsl arrainfed eoiiceiitriwilly about the heater. a liquid receiving trough surroundini;v the heater, a deliv'cry pipe leadingA troni the trough to each ol the said vessels, l valw` located in each of said pipes, a gear meel:

.lli

asv,

anism, and connections hetiveeln the gear mechanism and each of said valves for automati ,allyoperating' the latter, and means for discharging each of said vessels.

15. ln a pastenrizing appa atus, the conibination of a series ot liquid holding' vessels, a'reeeivinp; trough, a delivery pipe leading` from said trough to each of said receptacles, a valve located in each of said delivery pipes, means for automatically operating the said valves successively, and means tloi' controlling the discharge ot' a liquid trom eacli'of the said vessels.

1G. l'n a pasteurizingir apparatus, the couibiiiation of a series of liquid holding,y vessels, a receiving triiugh, a delivery pipe leadii'iii' from said trough to each of said receptacles, a valve located in each ot' said delivery pipes, a driven shaft, a valve control mechanism for ca h valve, and a cam revolved hy the said driven shaft for operating' the valve ,control mechanism, and means automatically control-ling the discharge from each vessel.

y l17'. Iii a pasteuriziiie' apparatus, the conibination ot' a series of liquidl holding' vessels,

means toi" supporting said vessels in series` means for automatically filling' each ot' said vessels successively, means for automatically einptyingthe said vessels, and means per-4 mitting each of said vessels to he independently removed from said series relationship.

18. ln a pasteurizing' apparatus, the coni- Abination otl a series of liquid holding' vessels adapted to he filled and emptied successively, means for supportingy said vessels in series, a liquid receiving trough, a delivery pipe leading from the troughto each ot' the said vessels, an outlet pipe leading.,T from .each of said vessels, each delivery7 pipe and each outlet pipe being formed in two parts, and a coupling Yfor uniting the two parts of each of said pipes.

19. In a pasteiirizing' apparatus, the conihination of a heater having a rotatable liquid treating Wall over which the liquid travels in a relatively attenuated stream or film, means for rotating said wall, a holding vessel arranged to receive the liquid after it leaves saidl treatingwall, valve mechanism for controlling the discharge of liquid trom said holding vessel, and operating mechanism for said valve mechanism interposed be tween said valve mechanism and said rotatiiigmeans for the liquid treating Wall'.

Q0. Ina' pasteurizin-g apparatus, the combination of a heater having a rotatable liquid treating Wall over which the liquid travels in a relatively attenuated stream or tilm,` means for rotating said Wall, a holding Vesleaves said treating,` wall, vali t; mechanism for coiitrolliirei the tloiv of treated liquid from said treating' wall to said holding vessel, valve mechanism for controlling the discharge ot' liquid from said holding v el, and operatingr mechanism tor said valve mechanism interposed hetiveen said valve mechanism and said rot ating' means for the liquid treating' wall.

2l. ln a p'asteiiiiziim` apnii'atus, the comg biiiation of a heater ha ving a rotatable liquid treating' ivall over which the liquid travels in a relatively attenuated stream or tilm, means for rotatingl said wall, means for unit'oi'ii'ilivT heating' the liquid While it travelingr along said treating` ivall, a holding' vessel arranged to receive the liquid utter it leaves s aid tr iatii'ic,f wall, valve mechanism for controlling the discharge 'ot' liquid from said holding' vessel, and operating mechanism for saidl valve mechanism interposed hetiveen said valve mechanism and said rotat ing means ior the liquid treating ivall.

ln a pasteurixing apparatus, the com-- loinatioii of a li ater'having a rotatable liquid treating' ivall over which the liquid travels in a riilatively attenuated stream or tilm, means for rotating,` said wall, means for uniformly heatingy the liquid while it is travelin a' along` said treating ivall, a holdingl ves- `sel arranged to receive the liquid after 'it leaves said treating' wall, valve mechanism for controlling' the tiow of treated liquid from said treating ivall to said holding vessel, valve mechanism t'or controlling the discharge of liquid from said holding vessel, and operating mechanism for said first mentioned valve mechanism interposed between said valve mechanism -and said rotating means for the liquid treating wall.

' 23. ln a pasteurizinp; apparatus, the eombination of a plurality of receiving' and holding vessels, means 'tor controlling the delivery of liquid to said vessels one after tlic other, means for automatically diseliarp' ing said vessels one a't'ter the other and after each of said vessels has held its charge for a `predetern'iined period of time, and means for adjusting the delivery controlling means LEROY S. PFOUTS.

1ilil'itnesses SYLvIA BORON,

6tarv sel arranged to receive the liquid after A WILLIAM H. MiLLnR.

or the discharging means one relatively to 

